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Code
conversion and Migration |
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The
following diagram illustrates the scripts migrated from
client/server application to web application. |
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In the migration process, both application's presentation and business logic will be moved to server page and business object respectively. The server page scripts as HTML/JSP scripts, where as the business object code will reside as PowerBuilder code.
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Presentation
Logic - The scripts for menu navigation, Tool Bars, User Object Controls and Disable/ Enable of the above controls will be moved to server pages. |
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Business
Logic - The scripts from the window events, functions,
user objects, datawindow control events, button events
and data validations like retrieve, insert & update
will be move along with the database connection object
as Business Objects. |
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Global
Variables - Any global variables used in the presentation
or business logic is converted as a page session variable,
where, it is needed by the server pages or by the components. |
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Global
Functions - The global functions, which are part
of the business logic, are converted as middle tier components. |
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Shell
Scripts - The scripts available in the application
base or framework objects, which are used as parts of
the presentation or business logic will be moved to server
page or middle tier components respectively. |
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